And regarding the SPA A pg 13 where they ask you to identify the "presence of some of the intermediate products" (of the digestion of starch to maltose by enzyme maltase), a quick search on wikipedia gave me this:

Dextrin

"Dextrins are a group of low-molecular-weight carbohydrates produced by the hydrolysis of starch. Dextrins are mixtures of linear α-(1,4)-linked D-glucose polymers starting with an α-(1,6) bond. Because branched amylopectin and glycogen also contain α-(1,6) bonds, which α-amylase cannot hydrolyze in humans, the digest resulting from this action contains a mixture of dextrins. They have the same general formula as carbohydrates but are of shorter chain length. Industrial production is, in general, performed by acidic hydrolysis of potato starch. Dextrins are water-soluble, white to slightly yellow solids that are optically active. Under analysis, dextrins can be detected with iodine solution, giving a red coloration." - Wikipedia

"Dextrin any one of a number of carbohydrates having the same general formula as starch but a smaller and less complex molecule. They are polysaccharides and are produced as intermediate products in the hydrolysis of starch by heat, by acids, and by enzymes. Their nature and their chemical behavior depend to a great extent on the kind of starch from which they are derived. For example, some react with iodine to give a reddish-brown color, others a blue, and still others yield no color at all." - Encyclopedia.com

So basically it means that the α-(1,6) bonds at branch point in amylopectin cannot be hydrolysed by amylase (α(1,6) glucosidase is needed in addition for complete digestion), resulting in the formation of polysaccharide dextrin, which gives a red/reddish-brown coloration in iodine solution.

DON'T WRITE THIS IN YOUR ANSWER THOUGH unless you trust me a lot.

From BIO REP,

8:48 PM

Wednesday, March 19, 2008,

Due to the insistence of some person who shall not be named, i give u these pictures!

Yo! I'm cool!

Awww.....

Lol the no life people!

9:29 PM

Monday, March 17, 2008,

HELLO ALL!

This week is a 3-day week! so cool right.

Thurs and Fri are holidays! YAY! (can go out celebrate!:D)

Anyway, i was thinking we should go out and watch a movie on thursday! After our CIP thing. plus dinner i suppose. Haha.

anyone wants to join me? :D

COME COME COME ALL!

:D

MUST CELEBRATE! OKAY PLEASE REPLY IN TAGBOARD IF YOU WANT TO GO! :D

yay hahah feeling excited already! whoooo. movie movie movie! :D

YUJIE

11:51 PM

Saturday, March 15, 2008,

BIO REP HERE!!

REMINDER:

ENZYME TUTORIAL DUE NEXT MONDAY (17 MARCH)!!!

That's all. Pass on the msg to those who never read the blog (I could have sms everyone personally, but I almost fainted from my phone bill last month, so...)

^_____^

and trust me you need one whole day to finish everything if you haven't started...

and Widjaja is scary...

Yours Sincerely Enzymely,

10:53 PM

Wednesday, March 12, 2008,

OHMYGOD!

CT OUTING WAS FREAKING FUN!

:D

yah right

ANYWAY, yesterday was our supposedly "ct outing". BUT

5 out of 26 came in the afternoon and 8 out of 26 came for the dinner.

that is so fun!

the people who turned up are less than the people who turned up for my og outing which was quite sad already.

HOWEVER, we will not be affected by this small obstacle in our lives. :) we will continue to persevere and HOPEFULLY we will have a SUCCESSFUL ct outing! :D

and because of the small number of people turning up, we do not have pictures to put up! so next time more people come so we can have MANY pictures! :D

yay! now's my turn to post and contribute! (: i haven't blogged in a long time man.

so anyway, guess who we are?

we are 7A, the derviatives! xD

HAHHA, this was joelynn's idea.

so we are the dy/dx class! :D (sorry for the crap quality of the pictures. sony ericsson phones aren't famous for their superb camera functions :/)

and i wanna echo the post before me,

CONGRATULATIONS TO THE AWESOME HUANG CHENG PERFORMANCE!

It was really great, I enjoyed it a lot (: We have talented actors and actresses and everyone involved in the production in our class! It was a great success, so yay! :D Now you can relax, sleep more and not be like this:

HAH.

alright! enjoy the school holidays everyone! (:

love, denyse.

10:25 PM

YAY to all 08S7A HUANG CHENG PEOPLE! :D

WE LOVE YOU ALL!

THOSE ACTING WERE GREAT ON STAGE! THOSE CREW PEOPLE WERE GREATDOING PROPS AND LIGHTINGS AND EVERY OTHER THING!

:D:D:D

and congratulations for having such a successful performance!

and also to the fact that you all can finally eat chocolates, fried food etc!

and finally no need to stay in school until so late almost everyday!

and finally maybe can go out with the rest of the class often! :D

YAY!

hahahaha. okay that's all i want to say! GREAT JOB GUYS! :D

LOVE, from IT rep hahaha and also representing the class! :D

1:20 AM

Sunday, March 9, 2008,

ARES CIP!

Okay, after discussing with some people, here's what we've.

We'll be setting up 2 stalls - games and drinks.

GAMES

01. Ping-a-pong!Rules:a) The player is given 5 ping pong balls.b) He has to throw the 5 ping pong balls into the “holes” in the egg carton. Each “hole” is painted using a different colour. Each colour signifies a different number of points.c) Prizes will be awarded at the end of the game.

02. Ring-a-ring!Rules:a) The player is given 5 rings.b) He has to throw the 5 rings into the necks of the bottles.c) Each successive throw will be awarded with a prize.

DRINKS01. Milo dino02. Horlick dino03. Coffee dino etc..

More suggestions're welcome as the above's not finalised. Just what we've come up with so far during a random mass convo.(: Haha.

P.S You know I was talking about this Healthcare Kit thing during GP today..? Haha. Yeps. Didn't ask you guys to put down an item on the list in the end lah.:/ Tsktsk. But credit goes to Heather and Steffi for completing the table!(: Haha. They damn zai lah, they've read the exhibits in the Inner Plaza eh! Haha. XIEXIENIMEN!(: Whee!

Organisation: Whispering Hearts Family Service CentreActivity: CarnivalVenue: At the centre itselfTime: 1000 - 1400Audience: Students (5-12 years old) studying at the centre and the publicBudget: $100 (but we can fork out our own money in addition to the budget tho)

What we can do:01. Set up and man stalls at the carnival - foods, drinks, souvenirs etc02. Put up performance - magic show, singing of children songs, skits, dancing etc03. BOTH! Haha!

Spam the tagboard with suggestions or mail them to me by this Sun! Haha. Xiexieni!(:

Okay, guess what they're attracted to? Nah, not a hot babe, it'd've been more normal if they were more interested in one. They're looking/ playing/ analysng AN ANT! A FREAKING ANT! Damn it.O: So no life right?:/ Tsktsk people! HAHAHA.

Okay, we're down to the LAST WEEK. Go people! JIAYOU JIAYOU!(: We will survive man!

If you really need motivation, go listen to the song "I Will Survive" by Gloria Gayner. Nice song!(: Tho it's pretty much uhm, a love song..O: But then again, some ppl (ahem ahem) in class'll need all the courage in the world to take the first step towards a budding romance.. Lalala. HEEHEE!XP

12:52 PM

Saturday, March 1, 2008,

hello im just popping by:)

good luck and jiayou for bio test on tue! and for ILP presentation next week too.

but in the mean time, DRINK MORE WATER and DON'T FALL SICK. haha Don't stress yourself too much too :) take it easy man.